728 c software engineer jobs at 304 companies in Freeport, NY
2mo
Save
Mark Applied
Hide
C++ Software Engineer
Jersey City or Remote
$150k-$250k/yr RemoteFull Time
5+ YOEBachelor’s in CS or related field; 5+ years C++ (C++14/20) on Windows/Linux; OO design, STL, multithreading; networking fundamentals; distributed high-throughput systems; strong debugging; collaboration; AI-assisted ramp-up.
C++, Windows, Linux, STL, Multithreading, Networking, TCP/IP, AI-assisted tooling
3mo
Save
Mark Applied
Hide
Software Developer C/C++ (Fintech / Payments)
New York, New York, United States
$120k-$130k/yr HybridFull Time
5+ YOE5+ years C++ experience; legal working rights in the United States.
3w
Save
Mark Applied
Hide
Software Engineer (C++/C#)
Boston or Salt Lake City or San Francisco or New York City
RemoteFull Time
5+ YOEStrong proficiency in C++ and C#, 5+ years software engineering experience preferred, experience with low-latency systems, message parsers, multithreading, and maintaining client libraries.
C++, C#, Java, lldb, gdb
1mo
Save
Mark Applied
Hide
Senior Software Engineer, C++
Amsterdam or New York City
$185k-$225k/yr OnsiteFull Time
Flow Traders: Provides liquidity and market making across global financial markets.
5+ YOE5+ years C++ development experience, strong algorithms and multithreading skills, BSc/MSc/PhD in CS or Mathematics, experience with low-latency systems and exchange connectivity.
C++, Rust, Python, TypeScript, FIX, WebSocket, HTTP, TLS
3mo
Save
Mark Applied
Hide
C++ Software Developer
Amsterdam or Chicago or London or New York City
OnsiteFull Time
Strong C++ ability, fundamentals of software engineering, experience building scalable distributed systems, network programming, and performance optimization; computing degree preferred or extensive professional experience.
C++, Linux
2mo
Save
Mark Applied
Hide
Senior Software Engineer C++
New York or Chicago
$150k-$225k/yr HybridFull Time
7+ YOEExpertise in Linux C++ low-latency systems, 7+ years software engineering, BS/MS in engineering/computing/science, Git, gdb, valgrind, Python/bash, networking knowledge.
Linux, C++, Git, gdb, valgrind, Python, bash
1mo
Save
Mark Applied
Hide
Senior Software Engineer, Build Team (C/C++)
United States or New York City
$191k-$260k/yr HybridFull Time
5+ YOE5+ years professional C/C++ experience (C++11/14/17), proven work in large-scale C++ codebases, deep knowledge of memory, multithreading, and performance, technical leadership, and experience working in cross-functional teams.
C, C++, C++11, C++14, C++17, Docker, Kubernetes, API, RESTful, AI/ML
2mo
Save
Mark Applied
Hide
Software Engineer (C#/.NET)
New York or Carlsbad
$101k-$134k/yr OnsiteFull Time
4+ YOE4+ years in scalable distributed systems; expert in C# and/or C++; strong OO design; API design; web service scalability; MSSQL; Perforce.
Windows Server, SQL Server, IIS, .NET, C#, C++, MSSQL, Perforce, REST API, Web Services
2mo
Save
Mark Applied
Hide
Software Engineer (C#/.NET)
New York City or Carlsbad
$101k-$134k/yr OnsiteFull Time
4+ YOE4+ years building scalable distributed systems; expert in C# or C++; strong CS fundamentals, API design, web service scalability/security, and database (MSSQL) experience.
Windows Server, SQL Server, IIS, .NET, C#, C++, MSSQL, Perforce, Xbox Live, Sony NP, Games for Windows Live
1mo
Save
Mark Applied
Hide
Senior Software Engineer - Office Apps C++
New York, New York, United States
$160k-$240k/yr OnsiteFull Time
4+ YOE4+ years software engineering experience with modern C++/TypeScript/JavaScript, building high-performance multi-threaded systems, strong testing and automation practices, clear communication; degree in CS/Engineering/Math or equivalent.
modern C++, TypeScript, JavaScript, Microsoft Office, Microsoft Excel, Windows, ATL, COM, Microsoft Visual Studio, WinDbg, BQL
1mo
Save
Mark Applied
Hide
C# Software Developer (.NET)
New York City, New York, United States
$100k-$130k/yr HybridFull Time
3+ YOE3+ years .NET (Core/Framework) experience with C#, REST API development, SQL skills, familiarity with DevOps/CI-CD tools, fluent English, degree in CS/Engineering or equivalent experience preferred.
.NET, C#, ASP.NET MVC, ASP.NET Web API, Angular, SQL, Entity Framework, Bitbucket, Jenkins, XL Deploy, SonarQube, Checkmarx, CyberArk, Microsoft Azure
1mo
Save
Mark Applied
Hide
Junior C++ Developer
Chicago or London or New York
$150k-$200k/yr OnsiteFull Time
Strong foundation in algorithms, data structures, distributed systems, and software design; proficiency in low-level C++; familiarity with automated testing and CI/CD; strong communication and collaboration skills.
C++, CI/CD
1mo
Save
Mark Applied
Hide
Junior C++ Developer
New York or Chicago or London
$150k-$200k/yr OnsiteFull Time
Strong foundation in algorithms, data structures, distributed systems, and software design; desire to learn low-level C++; familiarity with automated testing and CI/CD; excellent communication skills.
C++, CI/CD, Order Management System (OMS)
2mo
Save
Mark Applied
Hide
Senior C++ Engineer
Krakow or Hyderabad or New York City or Chicago or London or Singapore or Hong Kong or Tokyo
HybridFull Time
4+ YOEBachelor's in Computer Science/Engineering (2:1) or equivalent, 4+ years development experience, expert C++ on Linux, Python, shell scripting, makefiles, multithreading, automated testing, gdb/Valgrind, and IP networking knowledge.
C++, Python, shell scripting, makefiles, Linux, gdb, Valgrind
23h
Save
Mark Applied
Hide
C# Developer
New York City, New York, United States
$86k-$127k/yr OnsiteFull Time
Strong C# and .NET Core experience with Web API, REST APIs, microservices, CI/CD, Git, DevOps tools, SQL or NoSQL, EF Core, and unit testing. Cloud and container experience preferred.
C#, .NET Core, Web API, REST APIs, microservices, Azure DevOps, GitHub, Jenkins, CI/CD, Git, Docker, Kubernetes, Azure, AWS, SQL, NoSQL, EF Core, Kafka, RabbitMQ
1mo
Save
Mark Applied
Hide
Senior Software Engineer (C++)
New York City or Washington or Vancouver or London or Galway or Budapest or Munich or Bengaluru or Singapore or Sydney
HybridFull Time
5+ YOE5+ years building secure, scalable services in C++; experience with cloud (AWS), infrastructure as code (CDK/Terraform), containers (Docker), CI/CD, SQL/NoSQL, security practices, AI/LLM tools and mentoring peers.
C++, AWS, CDK, Terraform, Docker, CI/CD, PostgreSQL, NoSQL, Angular, LLM, IAM
2mo
Save
Mark Applied
Hide
Software Engineer, Trading Systems (C++)
New York City, New York, United States
$120k-$285k/yr HybridFull Time
Degree in CS/Engineering/Math/Physics, strong algorithms/data-structures and distributed systems foundation, excellent C++ (Python preferred), experience building low-latency/high-performance systems, interest in financial markets.
C++, Python, Rust, Linux, FPGA
1mo
Save
Mark Applied
Hide
Senior Software Engineer, C&I
United States or Brooklyn
$130k-$170k/yr RemoteFull Time
5+ YOE5+ years software engineering experience; senior-level React and Java experience; strong full‑stack, SQL, automated testing, CI/CD, and technical project leadership skills.
React, Java, Jest, JUnit, SQL, Springboot, Maven, Python, S3, MongoDB, AWS, DBT, Snowflake
1mo
Save
Mark Applied
Hide
Senior Software Engineer
New York or United States
$180k-$250k/yr HybridFull Time
5+ YOE5+ years software engineering experience in Rust, C++, or C; experience building performant systems, distributed algorithms, consensus, and cryptography; strong software architecture and performance optimization skills; BS/MS/PhD in CS or equivalent.
C++, Rust, C, GitHub
3w
Save
Mark Applied
Hide
Senior Lead Software Engineering - C++ low latency
Chicago or Plano or Jersey City
$147k-$225k/yr OnsiteFull Time
10+ YOE10+ years software engineering experience, advanced C and C++ skills, cloud-native experience, system design and operational stability expertise, experience with AI-assisted development practices.
C, C++